I'd also negotiate a reasonable rent increase to compensate for additional wear and tear/ utility usage from having an extra person.She sounds like a great tenant for asking permission.

They may not have thought to negotiate a large discount on the purchase price by documenting/hiring property inspector/taking own photographs and presenting findings to listing agent and owner who had not walked the property in over 3 years.The 4 units that were rented were, $600, $700, $700 and $800, with both of the $700 units being 3 bed 1.5 bath at approx 1,100 sq ft. 

We were looking for a house with added income from a rental How did you find this deal and how did you negotiate it?

It was a good asset as security to lend money How did you find this deal and how did you negotiate it?

How did you find this deal and how did you negotiate it?

I also thought it could be an option for my friend who was house hunting at the time, but we found her another place.How did you find this deal and how did you negotiate it?

why not negotiate to move into another better unit in their portfolio, maybe you get more apartment for same money or same apartment for less money?

passive income How did you find this deal and how did you negotiate it?

How did you find this deal and how did you negotiate it?

If she can't complete the deal in the time specified then you can negotiate anything you want.